Virginia's practice of automatically holding death row inmates in solitary confinement will be reviewed by a federal appeals court in a case that experts say could have repercussions beyond the state's borders.

U.S. District Judge Leonie Brinkema in Alexandria ruled last year that around-the-clock isolation of condemned inmates is so onerous that the Virginia Department of Corrections must assess its necessity on a case-by-case basis. Failure to do so, she said, violates the inmates' due process rights.

The state appealed, arguing that the courts should defer to the judgment of prison officials on safety issues. A three-judge panel of the 4th U.S. Circuit Court of Appeals will hear arguments Tuesday.

The lawsuit was filed by Alfredo Prieto, who was on California's death row for raping and murdering a 15-year-old girl when a DNA sample connected him to the 1988 slayings of George Washington University students Rachel Raver and Warren Fulton III in Reston. He also was sentenced to death in Virginia, where he has spent most of the last six years alone in a 71-square-foot cell at the Sussex I State Prison.

Some capital punishment experts say a victory by Prieto could prompt similar lawsuits by death row inmates elsewhere.

"It gives them a road map," said northern Virginia defense attorney Jonathan Sheldon, who noted that the due process claim succeeded where allegations of cruel and unusual punishment have routinely failed. "It's not that common to challenge conditions of confinement on due process grounds."